Gaya APA

Carlson, A, B., ì, I, C, P, B, I, R, J, C. (2002). Communication systems an introduction to signals and noise in electrical ì communication . Boston: .

Gaya MLA

Carlson, A., Bruce., ì, I., Crilly,, Paul, B., II., Rutledge,, Janet, C.. "Communication systems an introduction to signals and noise in electrical ì communication". Boston: , 2002. Text.